DE3676755D1 - DOUBLE BLOOD SPEED METER WITH RANGE CONTINUITY. - Google Patents

DOUBLE BLOOD SPEED METER WITH RANGE CONTINUITY.

Info

Publication number
DE3676755D1
DE3676755D1 DE8686107241T DE3676755T DE3676755D1 DE 3676755 D1 DE3676755 D1 DE 3676755D1 DE 8686107241 T DE8686107241 T DE 8686107241T DE 3676755 T DE3676755 T DE 3676755T DE 3676755 D1 DE3676755 D1 DE 3676755D1
Authority
DE
Germany
Prior art keywords
doppler
speed meter
frequency
blood speed
double blood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE8686107241T
Other languages
German (de)
Inventor
Philip A Desjardins
Jeffry E Powers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Technology Laboratories Inc
Original Assignee
Advanced Technology Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Technology Laboratories Inc filed Critical Advanced Technology Laboratories Inc
Application granted granted Critical
Publication of DE3676755D1 publication Critical patent/DE3676755D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

A Doppler blood velocity measuring device is described which includes anti-aliasing circuitry. The anti-aliasing circuitry is based upon the use of a multigate Doppler unit (12) which receives Doppler shift frequency information from various depth ranges. Thereafter, the Doppler frequencies received are corrected by adding a correction frequency to the perceived Doppler frequency with the correction frequency selected based on the assumption that blood flow velocity cannot change drastically between adjacent depths.
DE8686107241T 1985-05-30 1986-05-28 DOUBLE BLOOD SPEED METER WITH RANGE CONTINUITY. Expired - Lifetime DE3676755D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73925485A 1985-05-30 1985-05-30

Publications (1)

Publication Number Publication Date
DE3676755D1 true DE3676755D1 (en) 1991-02-14

Family

ID=24971481

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686107241T Expired - Lifetime DE3676755D1 (en) 1985-05-30 1986-05-28 DOUBLE BLOOD SPEED METER WITH RANGE CONTINUITY.

Country Status (5)

Country Link
EP (1) EP0212090B1 (en)
JP (1) JPH0685777B2 (en)
AT (1) ATE59764T1 (en)
CA (1) CA1262276A (en)
DE (1) DE3676755D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0685778B2 (en) * 1987-03-06 1994-11-02 アロカ株式会社 Ultrasonic diagnostic equipment
JPH0213441A (en) * 1988-06-30 1990-01-17 Yokogawa Medical Syst Ltd Ultrasonic wave pulse doppler device
EP0474867B1 (en) * 1990-03-30 1996-12-04 Shigeo Ohtsuki Method of processing doppler signal
FR2712700B1 (en) * 1993-11-18 1996-02-02 Rhea Acquisition and validation of rope speed measurements of a hydraulic flow in a sewerage collector.
WO2008101684A1 (en) * 2007-02-21 2008-08-28 Universität Duisburg Essen Method and device for the ultrasonography of blood flow

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323366B1 (en) * 1975-09-15 1978-09-01 Inst Nat Sante Rech Med ULTRA-SOUND VASCULAR VISUALIZATION METHOD AND DEVICE
US4217909A (en) * 1978-08-23 1980-08-19 General Electric Company Directional detection of blood velocities in an ultrasound system
FR2506472B1 (en) * 1981-05-25 1985-06-21 Inst Nat Sante Rech Med REAL-TIME MEASUREMENT METHOD AND APPARATUS FOR VISUALIZATION OF FLOW SPEEDS IN A VESSEL SEGMENT
JPS6055934A (en) * 1983-09-08 1985-04-01 松下電器産業株式会社 Ultrasonic blood flow meter
JPS62500283A (en) * 1983-11-10 1987-02-05 アク−ステツク　パ−トナ−ズ　ア　リミテツド　パ−トナ−シツプ Ultrasound diagnostic equipment

Also Published As

Publication number Publication date
ATE59764T1 (en) 1991-01-15
CA1262276C (en) 1989-10-10
JPS61279233A (en) 1986-12-10
EP0212090B1 (en) 1991-01-09
EP0212090A1 (en) 1987-03-04
CA1262276A (en) 1989-10-10
JPH0685777B2 (en) 1994-11-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee